1.
If you say that someone is playing Russian roulette , or that what they are doing is like playing Russian roulette , you mean that what they are doing is very dangerous because it involves unpredictable risks.
You are playing Russian roulette every time you have unprotected sex.
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2.
If someone plays Russian roulette , they fire a gun with only one bullet at their head without knowing whether it will shoot them.
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